Side-slipping weft detector for looms



o. v. PAYNE SIDE SLIPPING WEFT DETECTOR FOR LOOKS Dec. 1s, 192s. 1,695,384

Filed June 9, 1926 miur rammed Dan 192s. .l

Y1 lU11\1l"l`ED STATES PATENT 10.liz-F1( Eny Y OSAR. v' VPN" 0F WRCESTER, MASvsAoHiisnTTws, .iisseivon rro o BoiiIrTon-Ma, L,imowms Loon:` WORKS, or.fvsroncnsrnnn,,Massaormsnms7 .A CORPORATION 0F "glimssncHUsE'rTs Y .Y Y i y g I l y SIDE-SLIPIN'GWEET nnrnoron ron Looms. nppnatioi malienne 9,'1926.. serrano. 114,799.1

, Y This inventionrelates to improvements in vpositionandvin indicatingposition in dotted side slipping weft detectors'for loomsand it lines, parts being in section, Y y is the principal object of the `invention to? ,Figs 2, 3, and 1l, areverticalsections on provide a detectoruof this'type which shall line s.2'-2, 343,' and-r t4-4; respectively', of 55 5 eXert very little pressure on the yarn vbut atA Fiigl;Y v A f j 'Y t 'y f the same time be reliable in operation." Q iggu' is a'detail view ofV the detector show? l o Certain, typesof `yarn such asI rayon are p ing the same ycompressed bya bobbinhaving sov fine that a'b'obbin offytheordinary size suilici'ent'yarn for continued Weaving," and will last sufficiently long so that if the usual y Fig. 6l isv an enlarged vertical section' on' 6o 10 feeler wereA employedthe yarn would be line 6-6 of Figf shovvingthe method of injured by abrasion duel to; theV pressure of y mounting the slidable detectoren thev angu the detectoragainst a portion ofthe bobbin; larly movable support, A' 1 f It isa further obj ectl of my inventionto pro- Referring to the drawingswill be kseen vide aldetector more particularly adapted to that I' have provided a breastbeam 1() "and 65 l use with :fine yyarns and so constructed'that a 'loomside'11"tovvhich is boltedthe'footl' l the normally moving part is extremely light of av "Weit fr eplenishing vmechanism'vvhich andxheld in position by agdelicate 'spring may belofthe type ,set forth in= PatentNo. which can be` deformed with a verylight 1,030Q74S`. Saidl foot supports a stud 13 on 'resultant strain on. the yarn. Y which is pivoted-a transferrer arm 14'having 70 i "When Weit detectors are applied to the' depending fingers 15.V supporting any'app'roi usual iforml ofautomaticoboxvloom f it is priate form of transferrerlatch(not shown).

" customary to putthe detector on the maga-` JSecured to ,the-looinside llis ,afbracket l1 6 zineside of the loom, an arrangement Which in vwhich mountedk yforvertical' reciprocapermits the connections between thef contion a blockfl having pivo'tally mounted T troller `of* thedetecting mechanism and Ithe thereon an actuator lever 182r The`inner endv magazine to be very. short andI it is a further of said llever is connected to'a'rod 19 and the objectV of my invention to utilize an 'angu-' outer rendthere'of is'movable vertically in a larlylmovable supportlfor they detectorto slotm20 formed inan up'standinghorn' 21 Y control the actuator usually vemployed on cast Vpreferably as van'integ'gfr'al part offthc 80 a0 multi-colorweftvreplenishinglooms. A stand 1G. On each detectingbeat of -the'y i V It is usuali found thatwhen the advancloom the block descends "and theregis ing supply o weft engages the-:detector the no obstruction offered to the outer fendofkthe latter tends to rebound and it is necessary to actuator the latterl willVv move VdownuI'ar'dl'y employa spring sufficiently strong to prevent aboutrthe connection thereof `With rod 19 as 5;; this tendency, otherwise the detector fwire apivot av condition vexisting so long asthere rebounding` awayfrom the yarn may give issuifi'cen't yarn present. vWhen insufficient a false indicating movement and itis a fur; yarn is present, however', an obstruction to ther objectof my invention toprovide a very be described willl be moved into the pathof light detector with afcorrespondingly Vsmall the actuator, thisobstructionforming a 9( 40 tendency to rebound so that a light spring pivotabout Whiclii the actuator moves down may be used. y K A l Wardly .to depress rod 19" and"indicate vtothe v v ".With these and other objectsinI view which rc'plenishing mechanism, all asl set forth in will appear as the description proceeds, 'my the ai'oresai'dpatent.A The vmatter thus far invention residesr in the combination and described, with the exception of tlieobstruc! 95 i arrangement of parts hereinafter described tionforco'ntroller*is offcommon construction and set forth in the claims, y v and forms lno p'art of my `present invention.4 In the accompanying drawings `wherein I l In carrying out my improvements'l eX`` have shown a lconvenient e bodimentvofmy tendl theistand 16 to dthe right asatO in invention, l I v Fig. 1 and secure" thereto `as by screws 31a 1o( Fig. 1 is a top plan view of 4my detector guide 32' having spacedk Walls 33 and 34.

showing the ksame inffull linesin normal The `vforward endet the guide has app-'partition vthe rear end of the latter the same 1s compressed" and exe pands. v

An adjusting screw 42 is mounted in the slide 38 and engages the cap '39 to limit rear ward movement of the slide 38 under influence of the spring 36. Said screw is received' by a finger 43 extending to` the left as indicated in Fig. l and infront of the stud 44 carried by the transferrer lingers l5. At the time of transfer the stud is moved forwardly to engage the finger 43 and move the slide 38 to the front as is common in detectors employed on the magazine end of weft replenishing looms.

The slide 38 isprovided with an arm 45 extending to the left from the rear end Y thereof and saidarm is provided with a vertical 'stud' 46 and a pin 47 lto the rear of the stud. A detector carrier 48, preferably'of rectangular cross section as indicated in Fig. 4, is welded or otherwise secured` to the bear ing 49 which moves pivotally about stud 46. The rear end of saidicarrier isprovided with a bearing portion 50 normally substantially parallel to the axis of the "shuttley and said carrier is further providedwith a bent portion 5l.V Said bent portion is provided with, a pair of bearings 52 and 53, the latter bearing being open as indicated in F ig. 6` and being in alignment with a forward bearing 54 in the bearing portion 50. v i

The other end of theV carrier is extended to the leftof the stud 46 and bent at 55f to move ona flat area 56 of horn 2l when calledupon to do so. The bent end 50` is normally held out of the path ofthe actuator lever 18' by a torsion spring 57 one end of which bears against arm 45 as at 58 and the other end of Awhich engages the carrier as at '59. moving'. the latter against pin 47.

The detector proper is formed of a wire 6 0V having two spaced substantially parallel forwardly extending 'arms the shorter of which, indicated at 61, passes' through the bearingl and the longer of which, indicated at 62, passes through aligning bearings 53and 54. Said longer arm' 62 is provided with a collar 63 which maybe formed by upsetting the wire or by welding a washer thereto or in any other manner and there is provided a light compression spring 64 located between the Abearing portions 50 of the carrier and the collar 63. i The rear face of the detector 60 is provided with teeth 65 proportioned to enter the yarn on the bobbin under action of spring 64. Said spring 64 is preferably stronger than the torsion spring 57 Ilnder normal conditions the detector and carrier will be in the full line position indicated in Fig. l and as a bobbin provided `with sufficient weft advances the teeth 65 j will be embedded in the yarn and the detector 60 will' slide forwardly with respect to the carrier 48 to a position similar to that indicated in Fig.` 5, the bent controller end 55 being held out of the path of the actuator I8 so that the latter may descend without interruption. When insuflicient weft for weaving is present, however, aV substantially bare bobbin will engage thefdetector teeth and inasmuch as the latter are'oifs'et from the stud 46'continuedforward movement of the bobbin B in shuttle S will move the carrier and detector as a unit about stud 46 to some such a position as lthat indicated in dotted lines in Fig; rl. The result of this angular movement is tomove the'controller end `55 ofthe carrier under'the'actu'ator lever 18 t-o interrupt the downward movement of the latter and communicate indication Vof' weft exhaustion to the magazine.

From the foregoing 1t will be seen thatA I have provided a very light weftdetector of theside slipping type wherein a light carrier is movab e vabout its axis and has mounted thereon for sliding movement a detector ele: ment held in p normal position by alight spring'. It will furthermore beseen that the carrier is made as a part of the controller for the actuator which eifects a change in the operation of the loom, such as weft replenishment.

Having thus described my invention it will be apparent that changes and modifications may bemade therein by those skilled iny the art without departing from the spirit and scope of the invention, and I do not wish to be limited tothe details herein disclosed but what I claim is: Y 1. In a side slippinP weft detector for looms, lan actuator to e'ect a change in the operation of the loom, a pivoted carrier adjacent the lactuator and having a controller end'r rigid' therewith for said actuator, a detector slidably mounted on the carrier, said controller' end of the carrier being normally out of the' path of the actuator and movable into the path of said actuator when the carrier has a pivotal movement, saiddetector sliding on the carrier when sufficient weft is present and' preventing pivotal movement of the carrierby Contact of the detector with the weft,` and said detector sliding along a bobbin having insufficient weft to impart pivotal movement to the carrier to move the controller of said carrier under the actuator. 2. In a side slipping weft detector having a detecting surface to engage and bemoved laterally and forwardly by motion derived no v 1,695,384 v i v3V-` from the surface to be detected, an actuator tector but rigid with the art in which said lever having a regular movement on each dedetector slioles being Inova le into the path of tecting beat of the loom, a weft detector, a the actuator when the detector has a move- 10 carrier on which the detector is slidably ment to indicate weft exhaustion.l

6 mounted, and a pivotal support for the car- In testimony whereof I have hereunto rier, a portion of the carrier lying on that affixed my signature. a side of the pivotal support opposite the de- OSCAR V. PAYNE. 

